Key term for AQA GCSE Chemistry, used in Conservation of Mass and Measurement.
The proportion of the total relative formula mass of a compound that is made up of a specific element, expressed as a percentage.
Percentage by Mass appears in AQA GCSE Chemistry revision content for Quantitative chemistry, especially Conservation of Mass and Measurement and Relative Formula Mass.
Create a free account to access AQA GCSE Chemistry revision notes, track progress, and practise related key terms.